(New page: Category:ECE438Fall2011Boutin Category:problem solving = Simplify this summation= <math>\sum_{n=-42}^5 3^{n+1} (1+j)^n </math> ---- ==Share your answers below== You will receive f...) |
|||
| Line 8: | Line 8: | ||
---- | ---- | ||
===Answer 1=== | ===Answer 1=== | ||
| + | <span style="color:green"> TA's comments: Any complex number can be written as one single complex exponential. i.e. <math>a+jb=\sqrt{a^2+b^2}e^{j\theta}, where tan\theta = \frac{b}{a}</math> </span> | ||
Write it here. | Write it here. | ||
===Answer 2=== | ===Answer 2=== | ||
Revision as of 05:22, 29 August 2011
Contents
Simplify this summation
$ \sum_{n=-42}^5 3^{n+1} (1+j)^n $
You will receive feedback from your instructor and TA directly on this page. Other students are welcome to comment/discuss/point out mistakes/ask questions too!
Answer 1
TA's comments: Any complex number can be written as one single complex exponential. i.e. $ a+jb=\sqrt{a^2+b^2}e^{j\theta}, where tan\theta = \frac{b}{a} $ Write it here.
Answer 2
Write it here.
Answer 3
write it here.
